Free Illinois CDL Combination Vehicles Practice Test 2022

You have to pass the Illinois CDL combination vehicles endorsement to get ready for propelling your career with your license. You are looking for a good Illinois CDL Practice Test source for your coming CDL test? You are in the right place. Our practice test is a great resource for beginners. The test is designed for you to have exactly the experience of the exam as you will be more familiar with both the test format and the subject. Our CDL practice test covers topics ranging from combination vehicle maintenance to safely driving a complex rig. Each question is based on the official Illinois CDL manual so you can be sure that the information in our test is accurate and relevant to your examination. In addition, each question has a detailed explanation so that it is very useful for you to learn from your mistakes. Preparing well before test day with questions and content that we cover. Start with our Free Illinois CDL Combination Vehicles Practice Test today and walk out with your endorsement!

Our CDL practice tests:
Based on 2022 IL commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
IL CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
After the trailer has been coupled to the tractor, the tractor protection control valve should be placed in what position?
2.
Hose couplers are also referred to as:
3.
When traveling under 40 mph, how much distance should you leave, at minimum, from the car in front of you?
4.
Spring brakes are not required on trailers and dollies built before:
5.
When uncoupling, make sure that the parking area:
6.
Tractor with a ______ trailer requires the shortest amount of stopping distance.
7.
If the service line comes apart while you are driving a combination vehicle, but the emergency line stays together, what will happen right away?
8.
You are driving a combination vehicle when the trailer breaks away, pulling apart both air lines. You expect the trailer brakes to come on and:
9.
If you have to enter another traffic lane to complete a wide turn, you should:
10.
The tractor should be positioned to back under the trailer:
11.
If the spring brakes are not released when you pushed the trailer air supply valve you should:
12.
There are two things that a driver can do to prevent a rollover: They are: (1) go slow around turns, and (2):
13.
You are coupling a tractor to a semitrailer and have backed up, but are not under it. What should you hook up before backing under?
14.
Why should you be sure that the fifth wheel plate is greased as required?
15.
In normal driving, some drivers use the hand valve before the brake pedal to prevent a jack-knife. Which of the statements is true?
16.
You are about to back your tractor under a semitrailer. The trailer is at the right height when the:
17.
Rocky mountain doubles have a rearward amplification of about:
18.
What will happen if the air lines are crossed when you hook up to an old trailer?
19.
While driving, you should use the trailer hand valve when?
20.
Why should you lock the tractor glad hands to each other (or dummy couplers) when you are not towing a trailer?